MINERALIZATION




  • Pervasive gold mineralisation ranging from 1g/t to 10g/t occurs along FZ over a strike length ranging from few meters to a km..
  • Gold mineralisation occurs in all of the four major rock types (greywacke, diorite and quartz-feldspar porphyry), and is spatially associated with a complex alteration pattern. Alteration assemblages identified to date include calcsilicate, potassic, chlorite–calcite and carbonate and point to a mesothermal origin for gold mineralisation
  • Gold is associated with both arsenic and antimony dominated sulphide assemblages including arsenopyrite, pyrrhotite, pyrite, stibnite and gudmundite. Primary gold is extremely fine grained, dominantly less than 15 microns, with rare grains approaching 50 microns
  • The grains of gold from primary deposits are worn down and transported to sink to the bottom of creeks and lineaments as alluvial gold
  • The deposit has been intensely weathered and mainly exploited soft oxide ore since start up with the current known oxide reserves expected to be mined out by 2016.